Company_Context
Information Technology
Computer Hardware
Institutional analysis of internal capital flows based on SEC Form 4 filings.
Signal_Window
Headline metrics use exact calendar-day windows.
224 directional transactions in 365D
Code P purchases and code S sales are measured from 2025.10.18 — 2026.10.17.
-$74.9M
Open-market buys minus sales2026.09.20
Latest available filing15
Reporting entities in windowNo 365D buyer
No open-market buys in 365DTan Irving
$16.4MAnalysis of eligible SEC Form 4 activity for WDC indicates a bearish 365-day signal. The selected window contains transactions from 15 distinct reporting insiders, with aggregate nominal activity of $130.76M.
Open-market purchases minus open-market sales produce a negative net flow of $74.95M. Open-market executions represent the majority of measured nominal activity in this window, making the directional flow more representative of voluntary trading activity.
The largest open-market sale in the selected window was attributed to Tan Irving (Director). Form 4 activity provides useful ownership context, but it should not be treated as a standalone prediction of future price performance.
Enriched_Research_Context
These indicators use normalized SEC roles, issuer metadata, cluster detection and post-filing market prices already calculated by the data pipeline.
Information Technology
Computer Hardware
0
Clustered open-market purchase records in the recent filing sample.
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Recent_Filing_History
This table shows recent filing history and is not restricted by the selected 365D headline signal window.
No eligible open-market purchases were reported for WDC during the last 365 calendar days.
During the last 365 calendar days, eligible open-market sales total $74.95M. Tan Irving recorded the largest aggregate selling volume.
The 365-day open-market signal is BEARISH, with net flow of $74.95M across 15 reporting insiders in the selected window.
Performance pending
No matured open-market transaction with calculated market windows is available in the recent sample.
Performance uses the latest matured open-market record in this sample. It describes subsequent market movement and does not imply that the filing caused the price change.